8c27321c5bc40131cf7873a52907433ae736e8e2801ec8aadc350c17852b55af

Reason

Machine shutdown

General

Target

mm.ps1
Size

23KB
MD5

693b6c4521f4802b224456fc3e44761d
SHA1

a9e9df6762418bbed030e825099282da59278db0
SHA256

8c27321c5bc40131cf7873a52907433ae736e8e2801ec8aadc350c17852b55af
SHA512

1137c0d2c2639c054559b631eee03c209eae0c83d8754fdd827f880e9d85940dbf10c333c75d27dae4048cd7d64edbbcebe50acb58095022f2f7bb63077ddc28
SSDEEP

384:GNUnhcaoiWyW+ud7/HLHajbwHcGlftuLGuIw2wNhODLMVqVGGGMrGMbGba0Ni0aR:GNUnhcaoiWyW+ud7/r6jbw8GlftuLGuu

Score

8^/10

execution

Malware Config

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
6	5036	powershell.exe
7	5036	powershell.exe

Drops startup file 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_qnjgac4_N.lnk	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_qnjgac4_NEX.lnk	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_qnjgac4_NAT.lnk	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_qnjgac4_NAA.lnk	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_qnjgac4_Ny.lnk	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
5036	powershell.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "233"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\ms-settings\Shell	powershell.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\ms-settings\Shell\Open	powershell.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\ms-settings\Shell\Open\command\DelegateExecute	powershell.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\ms-settings\Shell\Open\command\ = "C:\\_qnjgac4_N\\_qnjgac4_Ni7.exe"	powershell.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\ms-settings\Shell\Open\command	powershell.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\ms-settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5036	powershell.exe
5036	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5036	powershell.exe
Token: SeShutdownPrivilege	2588	shutdown.exe
Token: SeRemoteShutdownPrivilege	2588	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3720	LogonUI.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5036 wrote to memory of 2588	5036	powershell.exe	85
PID 5036 wrote to memory of 2588	5036	powershell.exe	85

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\mm.ps1
1⤵
- Blocklisted process makes network request
- Drops startup file
- Command and Scripting Interpreter: PowerShell
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Windows\system32\shutdown.exe
  "C:\Windows\system32\shutdown.exe" /r /t 15
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2588

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39a9055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wdusylg5.4t4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/5036-0-0x00007FFDB7033000-0x00007FFDB7035000-memory.dmp

Filesize
8KB

Download
memory/5036-1-0x000001D0A2F20000-0x000001D0A2F42000-memory.dmp

Filesize
136KB

Download
memory/5036-11-0x00007FFDB7030000-0x00007FFDB7AF1000-memory.dmp

Filesize
10.8MB

Download
memory/5036-12-0x00007FFDB7030000-0x00007FFDB7AF1000-memory.dmp

Filesize
10.8MB

Download
memory/5036-13-0x000001D0A3330000-0x000001D0A33A6000-memory.dmp

Filesize
472KB

Download
memory/5036-14-0x000001D0A32B0000-0x000001D0A32CE000-memory.dmp

Filesize
120KB

Download
memory/5036-30-0x00007FFDB7030000-0x00007FFDB7AF1000-memory.dmp

Filesize
10.8MB

Download
memory/5036-31-0x00007FFDB7030000-0x00007FFDB7AF1000-memory.dmp

Filesize
10.8MB

Download
memory/5036-33-0x00007FFDB7030000-0x00007FFDB7AF1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

Errors